On Sep 4, 5:19 pm, Jagdeep Singh Malhi <singh.malh...@gmail.com>
wrote:
> I try to Create forms from models
> I am facing error message with 'is_valid()'
>
> error is :
> {
> AttributeError at /add_db/
>
> 'Input' object has no attribute 'is_valid'
>
> Request Method: POST
> Request URL: http://localhost/django/add_db/
> Django Version: 1.2.1
> Exception Type: AttributeError
> Exception Value:
>
> 'Input' object has no attribute 'is_valid'
>
> Exception Location: /home/jagdeep/mysite/add_db/views.py in add_db,
> line 11
> Python Executable: /usr/bin/python
> Python Version: 2.6.5
>
> }
>
> Coded file are given below:
> model.py :
> from django.db import models
> from django.forms import ModelForm
>
> class Input(models.Model):
> input1 = models.FloatField()
> input2 = models.FloatField()
>
> class Output(models.Model):
> out = models.ForeignKey(Input)
> output = models.FloatField()
>
> class InputForm(ModelForm):
> class Meta :
> model = Input
>
> class OutputForm(ModelForm):
> class Meta :
> model = Output
>
> View.py :
> from django.http import HttpResponseRedirect
> from django.shortcuts import render_to_response
> from mysite.add_db.models import *
> from django.template import RequestContext
> from django.core.urlresolvers import reverse
>
> def add_db(request):
> if request.method == 'POST':
> form = Input(request.POST)
> if form.is_valid():
> cd = form.cleaned_data
> input1 = cd['input1']
> input2 = cd['input2']
> form.save()
> output = input1 + input2
>
> return render_to_response('add_db/output.html', {'form':
> form, 'input1':input1, 'input2':input2, 'output':output},
> context_instance=RequestContext(request))
> else:
> form = Input()
> return render_to_response('add_db/add.html', {'form': form},
> context_instance=RequestContext(request))
>
> Please help.
>
> Thanks
Fairly obviously, you've instantiated the model - Input() - rather
than the form - InputForm() - in both branches of the if statement of
your view.
--
DR.
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